Update TUnit test framework.

Author: esausilva

tests/Synology.Api.Sdk.Tests/Synology.Api.Sdk.Tests.csproj

@@ -12,7 +12,7 @@
 
     <ItemGroup>
       <PackageReference Include="NSubstitute" Version="5.3.0" />
-      <PackageReference Include="TUnit" Version="1.47.0" />
+      <PackageReference Include="TUnit" Version="1.53.0" />
     </ItemGroup>
 
     <ItemGroup>